{-# LANGUAGE RecordWildCards, OverloadedStrings, QuasiQuotes #-}
module Clckwrks.ProfileData.EditProfileDataFor where

import Clckwrks
import Clckwrks.Admin.Template  (template)
import Clckwrks.ProfileData.Acid (GetProfileData(..), SetProfileData(..))
import Clckwrks.Authenticate.Monad ()
import Data.Maybe               (fromMaybe)
import Data.Set                 as Set
import Data.Text.Lazy           (Text)
import qualified Data.Text.Lazy as LT
import qualified Data.Text      as Text
import Data.UserId              (UserId)
import Language.Haskell.HSX.QQ  (hsx)
import Happstack.Authenticate.Core (Email(..), GetUserByUserId(..), User(..), UserId(..), Username(..))
import Happstack.Authenticate.Password.Core (SetPassword(..), mkHashedPass)
import HSP.XMLGenerator
import HSP.XML
import Text.Reform              ((++>), mapView, transformEitherM)
import Text.Reform.Happstack    (reform)
import Text.Reform.HSP.Text     (inputCheckboxes, inputPassword, inputText, labelText, inputSubmit, fieldset, ol, li, form, setAttrs)

editProfileDataForPage :: ProfileDataURL -> UserId -> Clck ProfileDataURL Response
editProfileDataForPage here uid =
    do pd <- query (GetProfileData uid)
       mu  <- query (GetUserByUserId uid)
       case mu of
         Nothing ->
           template "Edit Profile Data" () $
             [hsx|
               <div>Invalid UserId <% show uid  %></div>
             |]
         (Just u) ->
           do action <- showURL here
              template "Edit Profile Data" () $ [hsx|
                <div>
                 <h2>User Info</h2>
                 <dl>
                  <dt>UserId</dt>  <dd><% show $ _unUserId $ _userId u %></dd>
                  <dt>Username</dt><dd><% _unUsername $ _username u %></dd>
                  <dt>Email</dt>   <dd><% maybe Text.empty _unEmail  (_email u) %></dd>
                 </dl>
                 <h2>Roles</h2>
                 <% reform (form action) "epd" updated Nothing (profileDataFormlet pd) %>
                 <h2>Update User's Password</h2>
                 <% reform (form action) "pf"  updated Nothing (passwordForFormlet uid) %>
               </div>
               |]
    where
      updated :: () -> Clck ProfileDataURL Response
      updated () =
          do seeOtherURL here

passwordForFormlet :: UserId -> ClckForm ProfileDataURL ()
passwordForFormlet userid =
    (fieldset $
      (divControlGroup $
        (divControls (label' "new password" ++> inputPassword))
        )
      <* (divControlGroup $ divControls $ inputSubmit "Change Password"  `setAttrs` [("class" := "btn") :: Attr Text Text])
      ) `transformEitherM` updatePassword
    where
      label' :: Text -> ClckForm ProfileDataURL ()
      label' str      = (labelText str `setAttrs` [("class":="control-label") :: Attr Text Text])
--       divHorizontal   = mapView (\xml -> [[hsx|<div class="form-horizontal"><% xml %></div>|]])
      divControlGroup = mapView (\xml -> [[hsx|<div class="control-group"><% xml %></div>|]])
      divControls     = mapView (\xml -> [[hsx|<div class="controls"><% xml %></div>|]])

      updatePassword :: Text.Text -> Clck ProfileDataURL (Either ClckFormError ())
      updatePassword newPw
        | Text.null newPw = pure (Right ())
        | otherwise =
            do hp <- mkHashedPass newPw
               update (SetPassword userid hp)
               pure (Right ())

profileDataFormlet :: ProfileData -> ClckForm ProfileDataURL ()
profileDataFormlet pd@ProfileData{..} =
    (fieldset $
      (divControlGroup $
        (divControls (inputCheckboxes [ (r, show r) | r <- [minBound .. maxBound]] (\r -> Set.member r roles)) `setAttrs` (("class" := "form-check") :: Attr Text Text)))
      <* (divControlGroup $ divControls $ inputSubmit "Update Roles"  `setAttrs` [("class" := "btn") :: Attr Text Text])
    ) `transformEitherM` updateProfileData
    where
      label' :: Text -> ClckForm ProfileDataURL ()
      label' str      = (labelText str `setAttrs` [("class":="control-label") :: Attr Text Text])
--       divHorizontal   = mapView (\xml -> [[hsx|<div class="form-horizontal"><% xml %></div>|]])
      divControlGroup = mapView (\xml -> [[hsx|<div class="control-group"><% xml %></div>|]])
      divControls     = mapView (\xml -> [[hsx|<div class="controls"><% xml %></div>|]])

      updateProfileData :: [Role] -> Clck ProfileDataURL (Either ClckFormError ())
      updateProfileData roles' =
        do let newPd = pd { roles    = Set.fromList roles'
                          }
           update (SetProfileData newPd)
           pure (Right ())

--       ((li $ labelText "roles:")            ++> ((li $ inputCheckboxes [ (r, show r) | r <- [minBound .. maxBound]] (\r -> Set.member r roles)) `setAttrs` (("class" := "form-check") :: Attr Text Text))